131444278

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 243855360

約数和(自身を除く): 112411082

約数列:

[1, 2, 7, 14, 31, 41, 62, 82, 83, 89, 166, 178, 217, 287, 434, 574, 581, 623, 1162, 1246, 1271, 2542, 2573, 2759, 3403, 3649, 5146, 5518, 6806, 7298, 7387, 8897, 14774, 17794, 18011, 19313, 23821, 25543, 36022, 38626, 47642, 51086, 51709, 103418, 105493, 113119, 210986, 226238, 228997, 302867, 457994, 605734, 738451, 791833, 1476902, 1583666, 1602979, 2120069, 3205958, 4240138, 9388877, 18777754, 65722139, 131444278]

約数ペア:

[(1, 131444278), (2, 65722139), (7, 18777754), (14, 9388877), (31, 4240138), (41, 3205958), (62, 2120069), (82, 1602979), (83, 1583666), (89, 1476902), (166, 791833), (178, 738451), (217, 605734), (287, 457994), (434, 302867), (574, 228997), (581, 226238), (623, 210986), (1162, 113119), (1246, 105493), (1271, 103418), (2542, 51709), (2573, 51086), (2759, 47642), (3403, 38626), (3649, 36022), (5146, 25543), (5518, 23821), (6806, 19313), (7298, 18011), (7387, 17794), (8897, 14774)]